100-mK bolometric receiver for low-background astronomy

S. T. Tanaka; Andre Clapp; Mark J. Devlin; Marc L. Fischer; Chris Hagmann; Andrew E. Lange; Paul L. Richards

doi:10.1117/12.158665

20 October 1993 100-mK bolometric receiver for low-background astronomy

S. T. Tanaka, Andre Clapp, Mark J. Devlin, Marc L. Fischer, Chris Hagmann, Andrew E. Lange, Paul L. Richards

Proceedings Volume 1946, Infrared Detectors and Instrumentation; (1993) https://doi.org/10.1117/12.158665
Event: Optical Engineering and Photonics in Aerospace Sensing, 1993, Orlando, FL, United States

Abstract

The design and construction of 100 mK composite bolometers for low background submillimeter and millimeter-wave astronomy are discussed. The bolometers are cooled to 100 mK using an adiabatic demagnetization refrigerator. The bolometers consist of a silicon substrate suspended by nylon fibers, a bismuth film absorber, a neutron transmutation doped germanium thermometer with graphite fiber electrical leads, and a brass wire thermal strap. Heated JFET amplifiers located on the 1.5 K cold plate are used to read out the bolometer signals. Electrically measured noise equivalent powers as low as 2 X 10^-17 W/(root)Hz have been achieved.

Citation Download Citation

S. T. Tanaka, Andre Clapp, Mark J. Devlin, Marc L. Fischer, Chris Hagmann, Andrew E. Lange, and Paul L. Richards "100-mK bolometric receiver for low-background astronomy", Proc. SPIE 1946, Infrared Detectors and Instrumentation, (20 October 1993); https://doi.org/10.1117/12.158665

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available